منابع مشابه
Fracture toughness and thermal shock of tool and turbine ceramics
The behaviour of some commercial tool carbides and turbine ceramics has been investigated in regard to resistance to crack initiation, crack propagation and retained strength after thermal shock. New data are provided, particularly measurements of the fracture toughness of these materials at actual operating temperatures (up to 1200 ~ C). Many of the materials did not follow the generally accep...
متن کاملTHERMAL SHOCK OF REFRACTORIES
Being brittle and having low thermal conductivity, refractories suffer damage and sometimes fail in service as a result of thermal shock. While the approach of those making fine-grained technical ceramics is to make their products sufficiently strong to withstand thermal stresses the refractory technologist is more cunning. He uses, often little known, devices to provide resistance to thermal s...
متن کاملUnderstanding Nanoscale Thermal Conduction and Mechanical Strength Correlation In High Temperature Ceramics With Improved Thermal Shock Resistance For Aerospace Applications
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متن کاملTitanium diboride ceramics for solar thermal absorbers
Titanium diboride (TiB2) is a low-density refractory material belonging to the family of ultra-high temperature ceramics (UHTCs). This paper reports on the production and microstructural and optical characterization of nearly fully dense TiB2, with particular interest to its potential utilization as novel thermal solar absorber. Monolithic bulk samples are produced starting from elemental react...
متن کاملThermal Shock Damage Characterization of High Temperature Ceramics by Non Destructive Test Methods
The knowledge of the thermal shock resistance of refractory materials is of outmost importance since it determines their performance in many applications, from ceramic manufacturing to oil refinery, thermal insulation, nuclear power, chemical and petrochemical industries. Thermal shock resistance is measured in terms of the number of cycles that a refractory material can withstand when subjecte...
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ژورنال
عنوان ژورنال: Journal of the Society of Materials Science, Japan
سال: 1999
ISSN: 1880-7488,0514-5163
DOI: 10.2472/jsms.48.1